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Radiant|Lab Grown|IGI

1.59ct D SI1 Radiant Lab Grown Diamond

EX • D/SI1 • IGI LG739595146

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG739595146

Diamond specifications and retailer prices

From HK$1,428 HKD
$182 USD
As of October 30, 2026
Save HK$8,771 HKD (86%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: HK$10,199 HKD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.59ct lab-grown radiant diamond

This 1.59ct lab-grown radiant sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG739595146 or 739595146. Listed at 17 retailers as of October 30, 2026, with prices from HK$1,428 to HK$10,199, a HK$8,771 spread on the same certified stone. Brilliant Earth lists it at HK$10,199. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.59
Carat
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.7°
Pavilion angle36°
OriginLab Grown
Grading LabIGI
CertificateIGI LG739595146
Dimensions7.95 × 5.86 × 3.95 mm
L/W Ratio1.36
Culet sizePointed
Top View
7.95 mm5.86 mm1.59 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG739595146
Side View
Table 65.0%Crown 45.7°Girdle: MediumPavilion 36°Culet: NoneDepth 67.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: HK$10,199 HKD|Low: HK$1,365 HKD|High: HK$10,513 HKD|Avg: HK$4,302 HKD|-3.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 1, 2026
Retailer 10HK$1,428 HKD
Retailer 14HK$1,655 HKD
Retailer 3HK$1,765 HKD
Retailer 11HK$1,765 HKD
Retailer 6HK$2,393 HKD
Retailer 8HK$2,990 HKD
Retailer 7HK$3,188 HKD
Retailer 5HK$3,512 HKD
Retailer 4HK$3,829 HKD
Retailer 9HK$4,464 HKD
Retailer 12HK$5,680 HKD
Retailer 13HK$8,160 HKD
Retailer 2HK$8,260 HKD
Brilliant EarthHK$10,199 HKD

44 data points across 14 retailers

17 retailersHK$1,428 HKD to HK$10,199 HKD

A
Cheapest Retailer
-
HK$1,428 HKD
$182 USD
A
Retailer 2
-
HK$1,655 HKD
$211 USD
View
Retailer 3
-
HK$1,765 HKD
$225 USD
View
Price last confirmed 7 days ago
A
Retailer 4
-
HK$1,765 HKD
$225 USD
View
A
Retailer 5
-
HK$2,008 HKD
View
B+
Retailer 6
-
HK$2,393 HKD
$305 USD
View
A
Retailer 7
-
HK$2,990 HKD
€363 EUR
View
A
Retailer 8
-
HK$3,188 HKD
£320 GBP
View
A
Retailer 9
-
HK$3,512 HKD
$448 USD
View
B+
Retailer 10
-
HK$3,829 HKD
$488 USD
View
B+
Retailer 11
-
HK$4,158 HKD
$530 USD
View
B+
Retailer 12
-
HK$4,464 HKD
$569 USD
View
B+
Retailer 13
-
HK$5,680 HKD
$724 USD
View
B+
Retailer 14
-
HK$5,794 HKD
SGD 998 SGD
View
Retailer 15
-
HK$8,160 HKD
$1,040 USD
View
Price last confirmed 32 days ago
B
Retailer 16
-
HK$8,260 HKD
£829 GBP
View
Most Expensive
B
Brilliant Earth
20675146A · Oct 31
HK$10,199 HKD
$1,300 USD
View
16 more retailers have this diamond
Prices start from HK$1,428 HKDSave up to HK$8,771 HKD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.59ct Radiant
HK$1,428 HKD